Carsten, gdal_rasterize definitely supports burning into existing files.
I'm not sure about the configuration of your raster -- some formats are not updatable-in-place, but the limitation isn't in gdal_rasterize. Best regards, Frank On Tue, Mar 19, 2024 at 8:42 AM Carsten Lockenkötter < carsten.lockenkoet...@web.de> wrote: > Hi Frank, > > I have read about gdal_rasterize but it seems it works a bit different as > i need it. > Gdal_rasterize converts a vector layer to a raster layer with specific > dimensions and create a new file, like a mask. > It could be work for me yes, because i publish the raster files as image > mosiac at the geoserver. > Maybe the new "mask" file overlays on me original files and the created > wmts tiles of the geoserver could contain the mask. > > I will try it, but is there another option to burn the vectorlayer into > existing tiles? > > Regards, > Carsten > Am 19.03.24, 00:14 schrieb Frank Warmerdam <warmer...@pobox.com>: > >> Carsten, >> >> The gdal_rasterize command allows you to "burn in" polygons from an OGR >> supported datasource into an existing raster. If your raster is a 3 band >> RGB file, you could use --burn 100 150 200 to burn in the RGB value >> (100,150,200). This will only work if the raster format you are using >> supports update-in-place. >> >> You would have to regenerate pyramids after this process -- they are not >> automatically updated by GDAL when the "base layer" is updated. >> >> Best regards, >> Frank >> >> >> On Mon, Mar 18, 2024 at 5:34 PM Carsten Lockenkötter via gdal-dev < >> gdal-dev@lists.osgeo.org> wrote: >> >>> Hi, >>> >>> >>> >>> is it possible to censor specific areas of an aerial image using GDAL? >>> >>> >>> >>> I have several smaller tiles that I've already transformed into my >>> desired coordinate system and generated internal pyramids. >>> >>> Subsequently, I would like to censor certain areas based on polygons >>> (e.g., from a shapefile or an Oracle DB) (coloring them grayish). >>> >>> Set the color must be done after transforming coordinatesystem and >>> generating pyramids. >>> >>> >>> >>> I usually use the compiled Windows binaries from gisinternals.com. >>> >>> Presumably, my plan doesn't work with that, right? At least I haven't >>> found anything in that direction. >>> >>> I suppose this could be done with a Python, but I've never worked with >>> Python before. >>> >>> Do I need to adjust the internal pyramids as well? Or do I have to >>> recreate them? >>> >>> >>> >>> Could you please show me a brief example of how it could work, so I have >>> an approach? >>> >>> I just need an idea of how to implement this and possibly some tips on >>> what else I need to consider. >>> >>> >>> >>> Regards, >>> >>> Carsten >>> _______________________________________________ >>> gdal-dev mailing list >>> gdal-dev@lists.osgeo.org >>> https://lists.osgeo.org/mailman/listinfo/gdal-dev >>> >> >> >> -- >> >> ---------------------------------------+-------------------------------------- >> I set the clouds in motion - turn up | Frank Warmerdam, >> warmer...@pobox.com >> light and sound - activate the windows | USA: +1 650-701-7823 >> <http://voice.google.com/calls?a=nc,%2B16507017823> >> and watch the world go round - Rush | CAN: +1 343-550-9984 >> > -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | USA: +1 650-701-7823 <http://voice.google.com/calls?a=nc,%2B16507017823> and watch the world go round - Rush | CAN: +1 343-550-9984
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